Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/6551#discussion_r31695131
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveQuerySuite.scala
---
@@ -69,6 +69,11 @@ class HiveQuerySuite extends HiveComparisonTest with
BeforeAndAfter {
sql("DROP TEMPORARY FUNCTION udtf_count2")
}
+ test("SPARK-8010: implicit promote to string type") {
+ sql("select case when true then '1' else 1 end from src ")
+ sql("select coalesce(null, 1, '1') from src ")
--- End diff --
And probably it's better to move the test into
https://github.com/OopsOutOfMemory/spark/blob/pnts/sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
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